Sliding type anti-impact civil air defense door

Abstract

The utility model relates to the technical field of civil air defense doors, in particular to a sliding type impact-resistant civil air defense door which comprises a door frame and a protective door which is in sliding connection with a guide rail fixed on the door frame, and an outer door plate and an inner door plate are arranged in an inner cavity of the protective door. According to the sliding type anti-impact civil air defense door, when the outer door plate of the protective door is impacted, the outer door plate inwards extrudes a reset spring and an elastic air bag to move in an inner groove, the impact force is counteracted through displacement of the outer door plate, and the multiple elastic air bags are arranged, so that the internal air pressure can be balanced through the effect of a communicating pipeline; single-point stress of the outer door plate is uniformly dispersed to the whole, the outer door plate can be limited through the bearing block, damage to the reset spring and the elastic air bag due to excessive movement is prevented, the impact strength is effectively improved through the self-displacement and uniform stress effect, the inner door plate is fully protected, and after impact is completed, the inner door plate is prevented from being damaged. And automatic resetting can be realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of civil air defense door, concretely to a sliding type anti-impact civil air defense door. BACKGROUND

[0002] The civil air defense door is the door of the entrance and exit of the people's air defense engineering, and the civil air defense door is classified as the ordinary single and double civil air defense door, the airtight door and the airtight door with the movable door sill, the airtight door and the airtight door with the movable door sill and various civil air defense equipment.

[0003] According to the anti-impact double civil air defense door of patent number CN209568900U, when the outer door plate is impacted during use, the internal parts are easily damaged, and cannot be effectively reset. UTILITY MODEL CONTENTS

[0004] In view of the defects of the prior art, the utility model provides a sliding type anti-impact civil air defense door, which solves the above problems.

[0005] To achieve the above object, the utility model is realized by the following technical scheme: a sliding type anti-impact civil air defense door, comprising a door frame and a protection door slidingly connected with a guide rail fixed on the door frame, an inner cavity of the protection door is provided with an outer door plate and an inner door plate, the inner cavity of the protection door is provided with an inner groove for sliding of the outer door plate, one side of the inner door plate is fixedly connected with a reset spring, one end of the reset spring is fixedly connected with one side of the outer door plate, one side of the inner door plate is fixedly connected with a plurality of receiving blocks and a plurality of elastic air bags, the plurality of elastic air bags are communicated through a communication pipeline, and the other side of the plurality of elastic air bags is fixedly connected with the side edge of the outer door plate, when the outer door plate of the protection door is impacted during use, the outer door plate is extruded to the reset spring and the elastic air bag in the inner groove, the impact force is offset through the displacement of the outer door plate, and the plurality of elastic air bags are arranged, the internal pressure can be balanced through the effect of the communication pipeline, the single-point stress of the outer door plate is evenly dispersed to the whole, the outer door plate is limited through the arrangement of the receiving block, the reset spring and the elastic air bag are prevented from being damaged due to excessive movement, the anti-impact strength is effectively increased through the displacement and uniform stress, the inner door plate is fully protected, and the reset can be automatically performed after the impact is completed.

[0006] As a further scheme of the utility model: two the protection doors opposite sides all inlay extrusion air bag, two the protection doors rear all are fixedly connected with through trachea and extrusion air bag intercommunication's pneumatic telescopic link, two the pneumatic telescopic link bottom all are fixedly connected with sealed pressing plate, sealed pressing plate top is fixedly connected with the protection door rear through the limiting spring, when the protection door opens, limiting spring pulls sealed pressing plate and rises, is located above the ground, when the protection door closes, two protection doors extrusion air bag extrusion each other, internal gas enters pneumatic telescopic link inside, then pneumatic telescopic link extends and drives sealed pressing plate and moves down and abuts on the ground, carries out secondary sealing, can automatically seal below when closing the door, can automatically reset when opening the door, will not produce friction with the ground and influence the opening and closing effect.

[0007] As a further scheme of the utility model: the receiving block is symmetrically arranged on both sides of the elastic air bag, and the width is half of the elastic air bag, which plays a protection role without affecting the contraction of the elastic air bag.

[0008] As a further scheme of the utility model: two the protection doors opposite sides all are covered with sealing strip, and seal when closing by the expansion of itself.

[0009] Compared with the prior art, the utility model has the following beneficial effects:

[0010] 1. When the outer door panel of the protection door is impacted, the outer door panel is moved inwardly to extrude the reset spring and the elastic air bag in the inner groove, the impact force is offset by the displacement of the outer door panel, and the multiple elastic air bags are arranged to balance the internal air pressure through the effect of the communication pipeline, so that the single-point stress of the outer door panel is evenly dispersed to the whole body, the outer door panel is limited by the receiving block, the reset spring and the elastic air bag are prevented from being damaged due to excessive movement, the impact strength is effectively increased by the displacement and uniform stress of the outer door panel, the inner door panel is fully protected, and the outer door panel can be automatically reset after the impact is completed.

[0011] 2. When the protection door is opened, the limiting spring pulls the sealed pressing plate to rise above the ground, when the protection door is closed, the extrusion air bags of the two protection doors are extruded each other, the internal gas enters the pneumatic telescopic link, then the pneumatic telescopic link extends and drives the sealed pressing plate to move downwardly and abut on the ground, secondary sealing is carried out, the lower part can be automatically sealed when the door is closed, the sealed pressing plate can be automatically reset when the door is opened, and the opening and closing effect is not affected by the friction with the ground. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a structural schematic view of the utility model;

[0013] Figure 2The utility model discloses a protective door's structure side view;

[0014] Figure 3 The utility model discloses Figure 2 The partial close-up view of A in the middle.

[0015] In the drawing: 1, door frame;2, guide rail;3, protective door;5, inner groove;6, outer door plate;7, inner door plate;8, reset spring;9, elastic air bag;10, bearing block;11, communication pipeline;12, extrusion air bag;13, pneumatic telescopic rod;14, limit spring;15, sealing press plate. DETAILED DESCRIPTION

[0016] In order to further illustrate the technical means and effects adopted by the utility model to achieve the predetermined utility model purposes, the specific implementation, structure, features and effects according to the utility model are described in detail as follows in combination with the drawings and preferred embodiments.

[0017] Please refer to Figures 1-3 The utility model provides a kind of technical scheme: a sliding type impact resistance civil air defense door, including door frame 1 and with the guide rail 2 of sliding connection of being fixed on door frame 1 protective door 3, the inner cavity of protective door 3 is provided with outer door plate 6 and inner door plate 7, the inner cavity of protective door 3 is opened with the inner groove 5 for the sliding of outer door plate 6, and the side of inner door plate 7 is fixedly connected with reset spring 8, and one end of reset spring 8 is fixedly connected with the side of outer door plate 6, and the side of inner door plate 7 is fixedly connected with multiple bearing blocks 10 and multiple elastic air bags 9 respectively, multiple elastic air bags 9 are communicated by communication pipeline 11, and the other side of multiple elastic air bags 9 is fixedly connected with the side of outer door plate 6, when outer door plate 6 of protective door 3 is impacted when using, outer door plate 6 is extruded reset spring 8 and elastic air bag 9 movement in inner groove 5, and impact force is offset by the displacement of itself, and the setting of multiple elastic air bags 9 can balance internal air pressure by the effect of communication pipeline 11, and single-point stress of outer door plate 6 is evenly dispersed to whole, by the setting of bearing block 10, outer door plate 6 can be positioned, prevent excessive movement from causing reset spring 8 and elastic air bag 9 damage, utilize the effect of displacement and uniform stress, effectively increase impact resistance, fully protect inner door plate 7, and after impact, it can be reset automatically.

[0018] Two protection doors 3 opposite sides are inlaid extrusion air bag 12, two protection doors 3 rear are fixedly connected with the air pipe and extrusion air bag 12 communication pneumatic telescopic rod 13, two pneumatic telescopic rod 13 bottom are fixedly connected with sealing pressboard 15, sealing pressboard 15 top is fixedly connected with the rear of protection door 3 through limiting spring 14, when protection door 3 opens, limiting spring 14 pulls sealing pressboard 15 and rises, is located above the ground, when protection door 3 closes, two protection doors 3 extrusion air bag 12 extrude each other, internal gas enters pneumatic telescopic rod 13 inside, then pneumatic telescopic rod 13 extends and drives sealing pressboard 15 to move down and abuts on the ground, carries out secondary sealing, can automatically seal below when closing door, can automatically reset when opening door, will not produce friction with ground and influence the effect of opening and closing.

[0019] The receiving block 10 is symmetrically arranged on both sides of the elastic air bag 9, and the width is half of the elastic air bag 9, which plays a protective role without affecting the contraction of the elastic air bag 9.

[0020] Two protection doors 3 opposite sides are inlaid extrusion air bag 12, two protection doors 3 rear are fixedly connected with the air pipe and extrusion air bag 12 communication pneumatic telescopic rod 13, two pneumatic telescopic rod 13 bottom are fixedly connected with sealing pressboard 15, sealing pressboard 15 top is fixedly connected with the rear of protection door 3 through limiting spring 14, when protection door 3 opens, limiting spring 14 pulls sealing pressboard 15 and rises, is located above the ground, when protection door 3 closes, two protection doors 3 extrusion air bag 12 extrude each other, internal gas enters pneumatic telescopic rod 13 inside, then pneumatic telescopic rod 13 extends and drives sealing pressboard 15 to move down and abuts on the ground, carries out secondary sealing, can automatically seal below when closing door, can automatically reset when opening door, will not produce friction with ground and influence the effect of opening and closing.

[0021] The above is only the preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed as the preferred embodiment, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content without departing from the scope of the present application. Any modification, equivalent change and modification of the above embodiment, which does not depart from the technical solution of the present application, are still within the scope of the present application.

Claims

1. A sliding impact-resistant civil defense door, comprising a door frame (1) and a protective door (3) in sliding connection with guide rails (2) fixed on the door frame (1), characterized in that: The inner cavity of the protective door (3) is provided with an outer door plate (6) and an inner door plate (7), the inner cavity of the protective door (3) is provided with an inner groove (5) for sliding of the outer door plate (6), one side of the inner door plate (7) is fixedly connected with a reset spring (8), one end of the reset spring (8) is fixedly connected with one side of the outer door plate (6), one side of the inner door plate (7) is fixedly connected with a plurality of receiving blocks (10) and a plurality of elastic air bags (9) respectively, a plurality of the elastic air bags (9) are communicated through a communication pipeline (11), and the other side of the plurality of elastic air bags (9) is fixedly connected with the side edge of the outer door plate (6).

2. The sliding impact-resistant civil defense door according to claim 1, characterized in that: The opposite sides of the two protective doors (3) are both inlaid with extruded air bags (12), the rear of the two protective doors (3) are both fixedly connected with pneumatic telescopic rods (13) communicated with the extruded air bags (12) through air pipes, the bottom ends of the two pneumatic telescopic rods (13) are both fixedly connected with sealing pressure plates (15), and the top of the sealing pressure plate (15) is fixedly connected with the rear of the protective door (3) through a limiting spring (14).

3. The sliding impact-resistant civil defense door according to claim 1, characterized in that: The receiving blocks (10) are symmetrically arranged on the two sides of the elastic air bag (9) and have a width of half of the elastic air bag (9).

4. The sliding impact-resistant civil defense door according to claim 1, characterized in that: The opposite sides of the two protective doors (3) are both coated with sealing strips.

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